Barometric Pressure in Brea, United States 
1012.5 hPa
20.6 ℃
89%
1.75 m/s
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The average pressure in Brea, California, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fairly fine, improving
The daily total fluctuation in pressure in Brea is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Brea hour by hour across the next 6 hourly readings.
Brea's air pressure usually stays around 30 inches. When high-pressure systems move in, it feels clear and calm. Low-pressure systems bring clouds and rain.
Brea's geography, being inland and near mountains, affects air pressure. The San Gabriel Mountains block some air flows, changing pressure patterns.
In summer, high pressure dominates, making it hot and dry. In winter, low pressure brings cooler and wetter conditions.
Brea has a Mediterranean climate with mild, wet winters and hot, dry summers. This climate type means air pressure changes with the seasons, affecting the weather.